To be used primarily to accelerate product development, such as their query language, N1QL. Couchbase’s CEO Bob Wiederhold said, “It’s relatively easy for us to raise money. The NoSQL industry is very hot.”

Cayley is an open-source graph database (written in Go) inspired by Freebase and Google’s Knowledge Graph. Its goal is to be a part of the developer’s toolbox where Linked Data and graph-shaped data (semantic webs, social networks, etc) in general are concerned.